–We should do what we can _____ the endangered animals.` --Yes, it’s duty_____ them.
#50588
A
save, to protect
B
save, protect
C
to save, protect
D
to save, to protect
推荐题目
Mr. Li asks the students in the river, because it’s too dangerous.
#50453
A
swim
B
to swim
C
not to swim
D
to not swim
Do you enjoy _________？
#49352
A
to sing and dance
B
singing and dancing
C
to sing and dance
D
sing and dancing
If people keep _______ down the forests, they will have nowhere _______.
#50334
A
to cut, to live
B
cutting, to live in
C
to cut, to live in
D
cutting, to live
Don’t forget ________ the lights before you go to bed.
#49236
A
turn off
B
turning off
C
to turn off
D
turns off